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Archives: January 2015

Outlier Detection with SQL Server, part 3.4: Dixon’s Q-Test

By Steve Bolton

…………In the last three installments of this amateur series of mistutorials on finding outliers using SQL Server, we delved into a subset of standard detection methods taken from the realm of statistical hypothesis testing. These are generally more difficult to apply to tables of thousands of… Read more

0 comments, 1,920 reads

Posted in Multidimensional Mayhem on 30 January 2015

Outlier Detection with SQL Server, part 3.3: The Limitations of the Tietjen-Moore Test

By Steve Bolton

…………The Tietjen-Moore test may have the coolest-soundest name of any of the outlier detection methods I’ll be surveying haphazardly in this amateur series of mistutorials, yet it suffers from some debilitating limitations that may render it among the least useful for SQL Server DBAs. It is… Read more

0 comments, 972 reads

Posted in Multidimensional Mayhem on 20 January 2015